/*
===========================================================================
This source file is part of DyLab (Dynamic Laboratory)
For the latest info, see http://dylab-modules.googlecode.com

Copyright (c) 2006-2008 Lukas Krejci
(krejci.lukas@volny.cz)

This file is part of DyLab.

    DyLab is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    DyLab is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with DyLab.  If not, see <http://www.gnu.org/licenses/>.
===========================================================================
*/

#ifndef __dylab_CameraNavigator_h__
#define __dylab_CameraNavigator_h__

//===========================================================================================
#include <dylab/utils/geometry/Vector3.h>
#include <dylab/utils/SignalRouter.h>
#include <dylab/simulation/Simulation.h>

//===========================================================================================
namespace dylab {

    /** 
     */
    class CameraNavigator 
        : public ComEventListener
    {
    public:
        static const String COMPONENT_NAME;

    private:
        Simulation * mSimulation;
        Vector3 mMove;
        bool mRotFlag;
        real_t mRotX;
        real_t mRotY;
        bool mSlowly;

    private:        
        typedef SignalRouter<CameraNavigator, InputEvent::keycode_t, void(CameraNavigator::*)(InputEvent::type_t)> Actions;
        Actions mActions;
        real_t mMoveSpeed;
        real_t mSlowMoveSpeed;
        real_t mRotSpeedX, mRotSpeedY;

    public:        
        CameraNavigator();        
        virtual ~CameraNavigator();
        
        virtual void initialize(Simulation * _simulation);        
		virtual void loadFromPropertyTree(const PropertyTree & _pt);
        virtual Simulation * getParentSimulation();
        virtual const Simulation * getParentSimulation() const;

        virtual void processEvent(const InputEvent & _inputEvent);        
        virtual void processEvent(const GfxEvent & _gfxEvent);

    private:
        void onMoveForward(InputEvent::type_t _type);
        void onMoveBackward(InputEvent::type_t _type);
        void onMoveLeft(InputEvent::type_t _type);
        void onMoveRight(InputEvent::type_t _type);
        void onMoveUp(InputEvent::type_t _type);
        void onMoveDown(InputEvent::type_t _type);
        void onSwitchSlowMove(InputEvent::type_t _type);
    };
}
//===========================================================================================
#endif // __dylab_CameraNavigator_h__